A few annoyances -
Cynidae (burrowing bugs) and stink bugs such as Cephaloplatus / Oncocoris can turn up in gigantic numbers in the wet season. Their chemical stink will get into everything, and you absolutely don’t want any in your eyes. This was in a sink in an outdoor communal laundry area after a light was left on the previous night. Tribe Geotomini from Douglas-Daly NT 0822, Australia on February 09, 2024 at 06:18 AM by simono · iNaturalist
Beware of crushing blister beetles and paederine rove beetles onto your skin. It will be muggy and hot at night if you are in the tropics and they can also become agitated and release caustic chemicals simply when they find themselves stuck in your sweat or poisoned by insect repellent you are wearing. Have water on hand and go to flush it IMMEDIATELY when you feel even the mildest burning sensation - it can take several minutes for the burn to take effect fully. I have several scars around my neck and shoulders where they have caused chemical burns before I could rush to get water from a vehicle further away.
Huge masses of micronectid water bugs if you are near water, sometimes tetrigidae (pygmy grasshoppers) or other similar very small things - I’m talking a ‘soup’ of writhing insects in the folds of the light sheet. The masses of extremely small insects can pose a significant hazard if they enter your ears (and you WILL get some in your eyes). Have something on hand to flush them out, or block your ears. The masses of insects can be so overwhelming that I’ve had trips with another person that have had to be called off after it got too much for them to handle. You’ll have tiny insects stuck under your clothes that will probably accompany you home in your vehicle too.
Invasive cane toads will be attracted to the insects at your light and start gobbling the catch that is on the ground. Don’t leave unattended for too long and kill or remove any cane toads that turn up as soon as you can. Native frogs will also show up so be sure you can tell them apart and avoid hurting the latter.
Water buffalo and feral pigs that normally flee from a person on foot in the day will wander right up to the light while you are there at night because it is not a thing they are used to seeing in the bush.